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galben [10]
3 years ago
5

What is blank _+ 5 = 5 + 9 ? And 16 • 4 = • 16?

Mathematics
1 answer:
Agata [3.3K]3 years ago
4 0

Answer:

The first one would be 9

The second one would be 4

Step-by-step explanation:

By adding the same numbers, you make the equations equal and therefore true.

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Help plzz (30) points for both of the question-plz help - this is life or dead answer
Elodia [21]

Answer:

The answer is B) 11.

Step-by-step explanation:

We can solve this by making an expression to represent the situation. Let x = the number of student books in the box (what we're looking for):

2.3x + 4.3 + 0.4 = 30

2.3x + 4.7 = 30

2.3x + 4.7 - 4.7 = 30 - 4.7

2.3x = 25.3

2.3x/2.3 = 25.3/2.3

x = 11

8 0
3 years ago
127.5 is what percent of 51?
poizon [28]
Multiply 1.275 with 51 to get the answer (65.025)
8 0
3 years ago
Are you study of a population of 1200 frogs you feel that sold out of every 180 frogs in the population has spots on the back ba
Vsevolod [243]

Answer: 1,120 frogs

Step-by-step explanation:

If 12 out of every 180 frogs in the population have spots on their backs, the number that do not are;

= 180 - 12

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168 frogs out of every 180 do not have spots. Out of 1,200 that would be;

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= 1,120 frogs

5 0
3 years ago
Given the following linear equation, find y at the value x=2. y=-5-3x​
Savatey [412]

Answer:

-11

Step-by-step explanation:

y=-5-3(2)

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4 0
2 years ago
What is ......<br><br>(23×10)+(23×7)=​
babunello [35]

Answer:

391

Step-by-step explanation:

(23 x 10) + (23 x 7) =

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391

Hope this helps! Please mark as brainliest.

5 0
3 years ago
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